Roberts Gorden CTU 22 TO 115 service manual To Turn the Heater Off, Simple Fault Finding

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SECTION 12: USER INSTRUCTIONS

12.4.2 To Turn the Heater Off

Set the installed remote controls to the “OFF” position.

The burner will turn off immediately.

The fan will continue to run for a few minutes. To restart, turn the control used above to “ON”.

12.5 Simple Fault Finding

Some possible reasons for the heater not operating are:

1.Gas supply not turned ON.

2.Electricity supply not turned ON.

3.The time and/or temperature controls are not “ON”.

4.The thermostat limit thermodisc may have operated. This may be caused by an interrup- tion of the electrical supply or failure of the distribution fan.

If the thermostat limit thermodisc persistently operates, there is a fault which must be investigated by a contractor qualified in the installation and service of gas-fired heating equipment.

12.5.1 Simple Fault Finding (Burner Faults)

If the burner fails to ignite for any reason, it will go to lockout. This will be indicated by the red light on the heater or at the remote indicator (if fitted).

1.Press in and release the lockout reset button. If a remote reset is not fitted, a reset button is on the rear panel of the heater.

See Page 5, Section 4.1.

Lockout should not occur during normal operation of the heater and indicates there is a fault condition which must be corrected.

FOR YOUR SAFETY

If you smell gas:

1.Open windows.

2.DO NOT try to light any appliance.

3.DO NOT use electrical switches.

4.DO NOT use any telephone in your building.

5.Leave the building.

6.Immediately call your local gas supplier after leaving the building. Follow the gas supplier’s instructions.

7.If you cannot reach your gas supplier, call the Fire Department.

WARNING

Fire Hazard

Do not store or use petrol or other flammable vapours and liquids in the vicinity of this or any other appliance.

Some objects will catch fire or explode when placed close to heater.

Failure to follow these instructions can result in death, injury or property damage.

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Contents Supplier, call the Fire Department Immediately call your local gasSupplier after leaving the building Follow the gas supplier’s InstructionsPage Roberts-Gordon, LLC Page Table of Figures Page Product Approval Corrosive Chemicals Heater SafetyInstaller Responsibility Clearances to CombustiblesGas Supply Minimum Required Installation ClearancesCritical Considerations 3.1 Basic Information VentilationInstallation Clearances and Clearances to Combustibles End View Rear View Specifications 4.1 CtuaDimension Data Ctua All Models Top ViewCTUB, Ctuc and Ctud Dimension Data CTUB, Ctuc and CtudGeneral Technical Data Table Gas rates corrected to standard conditions 1013.25 mbar 15 C Handling Heater Installation 5.1 GeneralAir Intake Terminal Cover Flue Installation 6.1 Flue InstallationType B22 Appliance Vertical and Horizontal Flue Termination Type B22 Appliance AIR Supply Ctud Heaters Optional Heater ConfigurationsDistribution Duct Work for CTUB, Ctuc and Ctud Heaters Option B GAS PipingConnections Option aWiring and Electrical Information 50 Hz Ctua Wiring Diagram ModelsSite Wiring CTUB/C Wiring Diagram Models Site Wiring230 V 1 Ø 50 Hz Ignition ModuleRUN For external fan wiring Ctud Wiring Diagram ModelsSite Wiring and Electrical Information Mechanical Checks CommissioningLouvres Electrical ChecksEnd View Automatic Burner Control Box SequenceTurning Off the Heater Combustion TestingCheck Gas Rate Instruction to the User External ControlsComplete the Commissioning Lighting Instructions To Turn On Heater Burner Lockout Reset ButtonHeater Operation Common User Controls Thermostat Limit ThermodiscTo Turn the Heater Off Simple Fault FindingSimple Fault Finding Burner Faults Gas Control Valve Maintenance Burner Maintenance13.3 Fan/Motor Assembly Maintenance Heat Exchanger MaintenanceGas Valves Conversion Between Gases 14.1 GeneralBurner Conversion Start Conduct Commissioning procedure as shown on Page 24, SectionConduct Commissioning procedure as shown Troubleshooting For Automatic Ignition Burner SystemsFor your safety and optimum heater performance Troubleshooting for Solenoid Valves Troubleshooting for Flame Supervision SystemRemoval and Replacement Parts Burner Injectors Burner CompartmentIgnition Electrode and Flame Probe Remove screws securing outlet flange to the flue adapter RG P/N Pressure SwitchCtub & Ctuc Centrifugal Fan/Guard/Motor Assembly Ctua Axial Fan/Guard/Motor AssemblyFan Removal and Replacement To Replace the Fan AssemblyFan Data Centrifugal Fan OrientationPage Page Page Some objects can catch fire or explode when placed

CTU 22 TO 115 specifications

The Roberts Gordon CTU 22 TO 115 is a renowned unit heater designed to deliver efficient heating solutions in commercial and industrial settings. Known for its advanced features and robust design, this unit heater is ideal for applications where warmth and comfort are essential, such as warehouses, manufacturing facilities, and large retail spaces.

One of the main features of the CTU 22 TO 115 is its powerful heating capacity. With a range of output capabilities, it can effectively heat large areas, ensuring that employees and equipment remain comfortable during cold weather. The heater's output is adjustable, allowing for tailored heating solutions based on specific operational needs.

This model integrates several innovative technologies to enhance efficiency and performance. The use of advanced combustion technology ensures optimal fuel efficiency, which translates to lower energy costs and reduced environmental impact. The heater is available in both gas and oil configurations, providing versatility to accommodate different fuel sources depending on availability and preference.

In addition to its energy efficiency, the Roberts Gordon CTU features a compact design, making it suitable for installations in tight spaces. Its lightweight construction allows for easy installation and relocation, ensuring that businesses can quickly adapt to changing layout requirements. The unit is equipped with high-quality materials and a durable finish, contributing to its longevity and low maintenance needs.

Safety is a paramount concern in any heating system, and the CTU 22 TO 115 doesn't disappoint. It comes with various safety features, including over-temperature protection, ensuring that it operates securely under all conditions. With automatic shutoff capabilities, the heater provides peace of mind to operators, allowing for unattended operation in more remote settings.

Moreover, the CTU’s quiet operation is a significant advantage, as it minimizes disruption in the workplace, ensuring a comfortable environment for personnel. Its design also facilitates easy access to components for maintenance, thus ensuring that the unit remains operational with minimal downtime.

Overall, the Roberts Gordon CTU 22 TO 115 combines performance, efficiency, and safety features to create a reliable heating solution for diverse industrial applications. Its adaptability to various fuel types and efficient design makes it a popular choice among facility managers looking for dependable heating solutions.
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